16545520231127 has 2 divisors, whose sum is σ = 16545520231128. Its totient is φ = 16545520231126.

The previous prime is 16545520231109. The next prime is 16545520231189. The reversal of 16545520231127 is 72113202554561.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16545520231127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16545520231627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8272760115563 + 8272760115564.

It is an arithmetic number, because the mean of its divisors is an integer number (8272760115564).

Almost surely, 2^{16545520231127} is an apocalyptic number.

16545520231127 is a deficient number, since it is larger than the sum of its proper divisors (1).

16545520231127 is an equidigital number, since it uses as much as digits as its factorization.

16545520231127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504000, while the sum is 44.

Adding to 16545520231127 its reverse (72113202554561), we get a palindrome (88658722785688).

The spelling of 16545520231127 in words is "sixteen trillion, five hundred forty-five billion, five hundred twenty million, two hundred thirty-one thousand, one hundred twenty-seven".